Once [Graham] can control the sonar pings and read the results back ... If you’re DSP-savvy, [Graham] is using a phase-shifted square wave signal so that the correlations of the sent and ...

Waves crash, tides go in and out ... At the heart of the “surfsonar” is the Ping Sonar Echosounder, a sonar transducer designed for AUV’s and ROV’s. [foobarbecue] embedded the transducer ...

Research by the U.S. Navy has developed a new passive sonar method that could revolutionize stealth underwater drones.

This Sonar Display is comprised of a "waterfall," many sound waves arranged vertically. Scrolling upwards, these waves represent different sound patterns over time. Moving horizontally across the ...

You can't, right? Well, not with your eyes. But you can "see" with sound waves. See how it works below, then find out what sonar is used for.

So, instead of using ultrasound, radio waves are used as they travel at 300,000,000 m/s. It works in the same way as sonar but with radio waves in place of ultrasound. A short pulse of radio waves ...

So, instead of using ultrasound, radio waves are used as they travel at 300,000,000 m/s. It works in the same way as sonar but with radio waves in place of ultrasound. A short pulse of radio waves ...